Final answer:
Edema in bedridden patients is commonly found in the lower extremities, with pulmonary edema being a potential severe case that requires immediate medical attention.
Step-by-step explanation:
Edema is often found in the lower extremities of bedridden patients, which includes areas such as the feet, ankles, and legs. This is due to the lack of muscle contractions that normally help push blood back to the heart, resulting in fluid accumulation in the tissues when the blood pools. Pulmonary edema can also occur in bedridden patients, which is excess fluid in the air sacs of the lungs and can be life-threatening due to compromised gas exchange.